<%@page import="java.sql.*" %>
<%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<!DOCTYPE html>
<html>
<head>
  <title>整表查询数据</title>
  <%! ResultSet rs;// 数据库查询结果 %>
  <%
    String dbName = "school";//数据库
    String userName = "root";//账户
    String userPassword = "hqx050607";//密码
    String url = "jdbc:mysql://localhost/"+dbName+"?user="+userName+"&password="+userPassword;
    Class.forName("com.mysql.cj.jdbc.Driver");//5.7以下不加.cj
    Connection conn = DriverManager.getConnection(url);//连接数据库
    Statement statement = conn.createStatement();//创建操作对象
    String sql = "select * from student";//查询学生表所有字段
    rs = statement.executeQuery(sql);//运行sql命令查询数据 结果放到rs结果集中
  %>
</head>
<body>
<form action="frist.jsp" method="post">
  <table>
    <th colspan="2">查询条件</th>
    <tr>
      <td>学号</td>
      <td>
        <input type="text" name="stuid" id="stuid">
      </td>
    </tr>
    <td><input type="submit" value="提交"> </td>
  </table>
</form>
<table border="1" bgcolor="#f0f8ff">
  <th colspan="4" style="font-size: x-large;alignment: center">
    学生信息表
  </th>
  <tr style="text-align: center">
    <td>学号</td>
    <td>姓名</td>
    <td>出生日期</td>
    <td>所在班级</td>
  </tr>
  <%--  循环展示数据  --%>
  <%
    while (rs.next()){
  %>
  <tr style="text-align: center">
    <td><%=rs.getString(1)%></td>
    <td><%=rs.getString(2)%></td>
    <td><%=rs.getString(3)%></td>
    <td><%=rs.getString(4)%></td>
  </tr>
  <%
    }
  %>
  <%
    rs.close();
    statement.close();
    conn.close();
  %>
</table>
</body>